This invention relates to new propanolamine derivatives presented by the following formula [I]:
1
wherein
R
1
is hydrogen or lower alkenyloxy,
R
2
is carboxy(lower)alkoxy or protected carboxy(lower)alkoxy,
R
3
is hydrogen or N-protective group,
n is an integer of 1 or 2,
and salts thereof which have gut selective sympathomimetic, anti-ulcerous, anti-pancreatitis, lipolytic and anti-pollakisuria activities, to processes for the preparation thereof and to a pharmaceutical composition comprising the same.
本发明涉及一种新的
丙醇胺衍
生物,其
化学式如下:1其中R1为氢或较低的烯丙氧基,R2为羧基(较低)烷氧基或保护羧基(较低)烷氧基,R3为氢或N-保护基,n为1或2的整数,以及其盐。这些衍
生物具有肠道选择性交感神经兴奋剂、抗溃疡、抗胰腺炎、脂肪分解和抗多尿活性,本发明还涉及其制备方法和包含该衍
生物的制药组合物。